[sdiy] FM Synth Designs

Grant Richter grichter at asapnet.net
Tue Aug 13 18:47:05 CEST 2002

> Yamaha owns the patent on FM synthesis (bought it from Stanford University
> where it was originally developed by John Chowning), and they defend the
> patent with a VERY heavy hand. At one point, they even tried to sue an
> analog synth manufacturer (Moog, I believe) because the owner's manual for a
> VCO module stated that the linear CV input on the VCO allowed FM synthesis.

I believe that was Buchla, because the oscillators actually say "FM" on
them. Yamaha drop the suit after they realized he had been doing this since
1963, which raised the issue of "prior art"...

More information about the Synth-diy mailing list